28037115

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 51397632

約数和(自身を除く): 23360517

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 103, 115, 207, 263, 309, 345, 515, 789, 927, 1035, 1315, 1545, 2367, 2369, 3945, 4635, 6049, 7107, 11835, 11845, 18147, 21321, 27089, 30245, 35535, 54441, 81267, 90735, 106605, 135445, 243801, 272205, 406335, 623047, 1219005, 1869141, 3115235, 5607423, 9345705, 28037115]

約数ペア:

[(1, 28037115), (3, 9345705), (5, 5607423), (9, 3115235), (15, 1869141), (23, 1219005), (45, 623047), (69, 406335), (103, 272205), (115, 243801), (207, 135445), (263, 106605), (309, 90735), (345, 81267), (515, 54441), (789, 35535), (927, 30245), (1035, 27089), (1315, 21321), (1545, 18147), (2367, 11845), (2369, 11835), (3945, 7107), (4635, 6049)]